Index: kernel/generic/include/errno.h
===================================================================
--- kernel/generic/include/errno.h	(revision 27d293a00b593b6f5a44432241d1ea84ac4ad4e1)
+++ kernel/generic/include/errno.h	(revision eb27ce5a8fc10aea5ca8d1e35996165a9eb406d8)
@@ -56,4 +56,5 @@
 #define EINVAL          -13     /* Invalid value */
 #define EBUSY           -14     /* Resource is busy */
+#define EOVERFLOW	-15	/* The result does not fit its size. */
 
 #endif